Battery pack connecting structure of energy storage battery box

Abstract

The utility model discloses a battery pack connecting structure of an energy storage battery box, relates to the technical field of energy storage batteries, and improves the stability of battery pack connection. Connecting plates are fixed at the two ends of the battery pack along the arrangement direction of the battery units, and the connecting assemblies are used for fixedly connecting the adjacent connecting plates; a connecting seat is fixed on the connecting plate, the connecting assembly comprises a connecting block and a connecting piece fixedly connected with the adjacent connecting block, and the connecting block is fixedly connected with the connecting seat. The stability of battery pack connection is improved.

Description

Technical Field

[0001] This application relates to the technical field of energy storage batteries, and in particular to a battery pack connection structure for an energy storage battery box. Background Technology

[0002] Current energy storage battery systems generally adopt a modular integrated design. Their basic structure consists of several battery packs connected in series and parallel to form a battery housing assembly, thereby improving energy density at the system level. Specifically, the structure of a single battery pack is characterized by multiple battery cells arranged linearly laterally under the constraint of a fixed support, forming a power output unit with a regular geometric shape.

[0003] However, the battery packs are distributed independently in the battery box and lack effective mechanical connection. Under vibration or impact conditions, they are prone to relative displacement, which affects the overall structural stability of the system. Utility Model Content

[0004] To improve the stability of battery pack connection, this application provides a battery pack connection structure for an energy storage battery box.

[0005] This application provides a battery pack connection structure for an energy storage battery box, which adopts the following technical solution:

[0006] A battery pack connection structure for an energy storage battery box includes a connection assembly; the battery pack has connection plates fixed at both ends along the battery cell arrangement direction, and the connection assembly is used to fixally connect adjacent connection plates; a connection seat is fixed on the connection plate, and the connection assembly includes a connection block and a connection piece fixedly connected to an adjacent connection block, and the connection block is fixedly connected to the connection seat.

[0007] By adopting the above technical solution and setting up connecting components to fix the connecting plates on adjacent battery packs, a stable mechanical connection is formed between the originally independent battery packs. When the energy storage battery box encounters vibration or impact conditions, this connection structure can effectively reduce the relative displacement of the battery packs, significantly improve the structural stability of the battery box assembly, and thus ensure the stable operation of the entire energy storage battery system under complex operating conditions.

[0008] Optionally, the connecting assembly further includes a frame, which includes two parallel horizontal frame strips and several vertical frame strips. The several vertical frame strips are vertically connected between the two horizontal frame strips, and the vertical frame strips are located between two adjacent battery packs to form a heat dissipation channel between adjacent battery packs.

[0009] By adopting the above technical solution, a frame is added to the connecting components. The layout of its horizontal and vertical frame bars creates heat dissipation channels between adjacent battery packs. This effectively improves the heat dissipation environment inside the battery box, increases the battery pack's operating efficiency and lifespan, and avoids performance degradation or safety hazards caused by heat accumulation.

[0010] Optionally, the connecting plate is fixedly connected to the longitudinal frame strip by bolts.

[0011] By adopting the above technical solution, the connecting plate is fixedly connected to the longitudinal frame strip by bolts, which facilitates installation and disassembly and improves the stability of battery pack installation.

[0012] Optionally, the connecting block includes a connecting part, a snap-fit ​​part, and a connecting neck connecting the connecting part and the snap-fit ​​part. The connecting seat has a snap-fit ​​groove for the snap-fit ​​part to snap into, and an opening for the connecting neck to extend out on the side of the connecting seat away from the connecting plate.

[0013] By adopting the above technical solution, the connecting block adopts a structural design of connecting part, snap-fit ​​part and connecting neck, which cooperates with the snap-fit ​​groove and opening on the connecting seat to realize the quick and accurate connection between the connecting block and the connecting seat.

[0014] Optionally, a heat dissipation vent is provided at the bottom of the snap-fit ​​part, and a heat dissipation groove is provided on the side of the snap-fit ​​part facing the bottom of the snap-fit ​​groove, which communicates with the heat dissipation vent. The heat dissipation vent and the heat dissipation groove communicate to form a heat dissipation channel structure.

[0015] By adopting the above technical solution, heat dissipation vents and grooves are opened on the snap-fit ​​part to form a heat dissipation channel structure, which further enhances the heat dissipation capacity of the battery pack.

[0016] Optionally, a reinforcing rib is fixed between the connecting seat and the connecting plate.

[0017] By adopting the above technical solution, a reinforcing rib is fixed between the connecting seat and the connecting plate, which enhances the connection strength between the connecting seat and the connecting plate and improves the load-bearing capacity of the entire connection structure.

[0018] Optionally, the connecting block has a groove, and the bottom of the groove has a threaded hole. One end of the connecting piece is detachably connected to the connecting block through a bolt and the threaded hole.

[0019] By adopting the above technical solution, the connection between the connecting piece and the connecting part becomes more flexible, making it easier to adjust or replace according to actual needs.

[0020] In summary, this application includes at least one of the following beneficial effects:

[0021] 1. By setting up connecting components, adjacent battery packs are mechanically connected in a stable manner, which effectively reduces the relative displacement of battery packs under vibration or impact conditions, significantly improves the structural stability of the battery box assembly, and ensures the stable operation of the energy storage battery system;

[0022] 2. On the one hand, a frame is set in the connecting component to form a heat dissipation channel between adjacent battery packs; on the other hand, heat dissipation vents and heat dissipation grooves are opened on the snap-fit ​​part to form a heat dissipation channel structure. The two work together to effectively enhance the heat dissipation capacity of the battery pack. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0024] Figure 2 This is a schematic diagram illustrating the structure of the connecting component in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram illustrating the structure of the connecting plate in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the connecting block in an embodiment of this application;

[0027] Figure 5 This is a top view of an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the frame structure of an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Battery pack; 2. Battery unit; 3. Fixing bracket; 4. Connecting plate; 5. Connecting assembly; 6. Connecting seat; 7. Reinforcing rib; 8. Connecting block; 9. Connecting piece; 10. Connecting part; 11. Snap-fit ​​part; 12. Connecting neck; 13. Snap-fit ​​groove; 14. Opening; 15. Groove; 16. Threaded hole; 18. Heat dissipation vent; 19. Heat dissipation groove; 20. Frame; 21. Horizontal frame strip; 22. Vertical frame strip. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses a battery pack connection structure for an energy storage battery box, which is mainly used to achieve a stable connection between several battery packs 1, thereby improving the structural stability and heat dissipation performance of the battery box assembly.

[0032] Reference Figure 1 , 2The battery pack 1 is assembled from several battery units 2 by a fixing bracket 3. Connecting plates 4 are fixedly installed at both ends of the battery pack 1 along the arrangement direction of the battery units 2 by bolts. The connection structure of the battery pack 1 includes a connecting component 5, which is used to fix adjacent connecting plates 4, thereby realizing a stable connection between the battery packs 1.

[0033] Specifically, refer to Figure 3 , 4 A connecting seat 6 is integrally formed and fixed on the connecting plate 4. A reinforcing rib 7 is fixed between the connecting seat 6 and the connecting plate 4 to enhance the connection strength between the connecting seat 6 and the connecting plate 4. The connecting assembly 5 includes a connecting block 8 and a connecting piece 9 fixedly connected to the adjacent connecting block 8. The connecting block 8 and the connecting seat 6 are fixedly connected by a reliable mechanical means. Integrating the originally independent battery packs 1 into a whole improves the structural stability of the battery box assembly and ensures that the energy storage battery system can maintain stable operation in complex operating environments.

[0034] Reference Figure 3 , 4 The connecting block 8 includes a connecting part 10, a snap-fit ​​part 11, and a connecting neck 12 connecting the connecting part 10 and the snap-fit ​​part 11. The connecting seat 6 has a snap-fit ​​groove 13 for the snap-fit ​​part 11 to snap into, and an opening 14 for the connecting neck 12 to extend from the side of the connecting seat 6 away from the connecting plate 4. During installation, the snap-fit ​​part 11 of the connecting block 8 is aligned with the snap-fit ​​groove 13 on the connecting seat 6, and the connecting block 8 is pushed into the snap-fit ​​groove 13, so that the snap-fit ​​part 11 and the snap-fit ​​groove 13 fit tightly together.

[0035] A groove 15 is provided on the connecting part 10, and a threaded hole 16 is provided at the bottom of the groove 15. The groove 15 is used for mounting and fixing the aluminum busbar connected to the battery unit 2. During installation, one end of the aluminum busbar is placed in the groove 15 of the connecting part 10, then the connecting piece 9 is placed against the aluminum busbar, and then the bolt is inserted and tightened to securely connect the connecting piece 9 and the aluminum busbar to the connecting part 10. This detachable connection method facilitates quick removal of the connecting piece 9 when the battery pack 1 needs maintenance or replacement, making operation convenient.

[0036] To improve the heat dissipation performance of the connecting block 8, a heat dissipation vent 18 is provided at the bottom of the snap-fit ​​part 11, and a heat dissipation groove 19 communicating with the heat dissipation vent 18 is provided on the side of the snap-fit ​​part 11 facing the bottom of the snap-fit ​​groove 13. The heat dissipation vent 18 and the heat dissipation groove 19 are connected to form a heat dissipation channel structure. The heat transferred to the groove 15 can be discharged through the heat dissipation channel.

[0037] Reference Figure 5 , 6The connecting component 5 also includes a frame 20, which improves the connection stability of the battery pack 1 and also assists in heat dissipation. Specifically, the frame 20 includes two parallel horizontal frame strips 21 and several vertical frame strips 22, which are vertically connected between the two horizontal frame strips 21 to form a grid-like structure.

[0038] During installation, the frame 20 is placed inside the battery box and its position is adjusted. Several battery packs 1 are positioned between two horizontal frame strips 21, with the vertical frame strips 22 positioned between adjacent battery packs 1. Then, the connecting plate 4 is fixedly connected to the vertical frame strips 22 using bolts. The resulting space between adjacent battery packs 1 serves as a heat dissipation channel, allowing the heat generated by the battery packs 1 to dissipate.

[0039] To improve the stability of the connection between the connecting plate 4 and the longitudinal frame strip 22, bolts are used to connect the connecting plate 4 and the longitudinal frame strip 22. The specific operation is as follows: holes are pre-made on the longitudinal frame strip 22, then bolts are passed through the connecting plate 4 and the longitudinal frame strip 22, and nuts are tightened to firmly fix the connecting plate 4 to the longitudinal frame strip 22.

[0040] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A battery pack connection structure for an energy storage battery box, characterized in that: The battery pack (1) includes a connecting component (5); the battery pack (1) has connecting plates (4) fixed at both ends along the arrangement direction of the battery cells (2), and the connecting component (5) is used to fix the adjacent connecting plates (4); the connecting plate (4) has a connecting seat (6) fixed on it, and the connecting component (5) includes a connecting block (8) and a connecting piece (9) fixedly connected to the adjacent connecting block (8), and the connecting block (8) is fixedly connected to the connecting seat (6).

2. The battery pack connection structure of the energy storage battery box according to claim 1, characterized in that: The connecting component (5) also includes a frame (20), which includes two parallel horizontal frame strips (21) and several vertical frame strips (22). The several vertical frame strips (22) are vertically connected between the two horizontal frame strips (21), and the vertical frame strips (22) are located between two adjacent battery packs (1) so that a heat dissipation channel is formed between the adjacent battery packs (1).

3. The battery pack connection structure of the energy storage battery box according to claim 2, characterized in that: The connecting plate (4) is fixedly connected to the longitudinal frame strip (22) by bolts.

4. The battery pack connection structure of the energy storage battery box according to claim 1, characterized in that: The connecting block (8) includes a connecting part (10), a snap-fit ​​part (11) and a connecting neck (12) connecting the connecting part (10) and the snap-fit ​​part (11). The connecting seat (6) has a snap-fit ​​groove (13) for the snap-fit ​​part (11) to snap into. The connecting seat (6) has an opening (14) on the side away from the connecting plate (4) for the connecting neck (12) to extend out.

5. The battery pack connection structure of the energy storage battery box according to claim 4, characterized in that: The bottom of the snap-fit ​​part (11) is provided with a heat dissipation port (18), and the snap-fit ​​part (11) is provided with a heat dissipation groove (19) communicating with the heat dissipation port (18) on the side facing the bottom of the snap-fit ​​groove (13). The heat dissipation port (18) and the heat dissipation groove (19) are connected to form a heat dissipation channel structure.

6. The battery pack connection structure of the energy storage battery box according to claim 1, characterized in that: A reinforcing rib (7) is fixed between the connecting seat (6) and the connecting plate (4).

7. The battery pack connection structure of the energy storage battery box according to claim 1, characterized in that: The connecting block (8) has a groove (15) and a threaded hole (16) at the bottom of the groove (15). One end of the connecting piece (9) is detachably connected to the connecting block (8) through a bolt and the threaded hole (16).

Images